Telephone station set base



FIG. 1 is a front right bottom perspective view of a telephone station set base showing my new design;

FIG. 2 is a front elevation;

FIG. 3 is a right-hand side elevation;

FIG. 4 is a rear elevation;

FIG. 5 is a left elevation; and

FIG. 6 is a top plan view. 

The ornamental design for a telephone station set base, substantially as shown and described. 